The glitch happened on Friday between 19:00 and 20:00 and it affected firms using Repricer Express, which automatically adjusts the prices of items on sale on Amazon to keep them competitive.
Repricer Express chief executive Brendan Doherty said he was deeply sorry for the disruption. Most orders were cancelled after the error was spotted.
Repricer Express is investigating the cause of the issue and will attempt to prevent it reoccurring in the future.
"We managed to get the problem resolved so that any new prices going to Amazon were correct within about an hour of the problem being reported," Doherty said.
"It took a further few hours to get incorrect prices reverted to their original prices where possible. Amazon have assured us that seller accounts will not be penalised for this issue."
Written by: James Delahunty @ 15 Dec 2014 11:32
